Imbolc (Imbolg) the festival marking the beginning of spring has been celebrated since ancient times and the Imbolc folklore that has developed over the years is fascinating. It is a Cross Quarter Day, midpoint between the Winter Solstice and the Spring Equinox. It can fall between the 2nd & 7th of February when calculated as the mid point between the astronomical Winter Solstice and the astronomical Spring Equinox.
Cross quarter days were traditionally when leasehold payments and rents for land and premises were paid, and on these days people had a little more freedom to celebrate and mark the changing seasons.
In some places in Ireland and Scotland, all work ceased on the feast and devotions at holy wells took place instead.